The legend says that in the old times of the ancient dragons were so many that they obscured the sky.

Card Effect(s)

[AUTO](RC):[Counter Blast (1)] At the beginning of the close step of the battle that this unit attacked a vanguard, if you have a «Sleeping Knights» vanguard, you may pay the cost. If you do, choose one of your «Sleeping Knights» rear-guards in the same column as this unit, and exchange its position with this unit. (The orientation of these cards will not change.)